Balloon Rocket STEM Worksheet

Science experiments lesson 7: Balloon rocket · Set 745 · 40 questions

What you do (Push back, move forward): 1. Thread the string through the straw and tie it tightly between two chairs. 2. Blow up the balloon (not too much) and pinch its neck shut. 3. Tape the balloon to the straw, neck pointing backward. 4. Let go, measure how far it goes, and keep it away from faces.

1. 1.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) yeast (b) sticky tape (c) a balloon (d) a drinking straw
2. 2.🧺 Which of these is needed for the balloon rocket? (a) a mirror (b) a magnet (c) two chairs (d) vinegar
3. 3.🚀 Which of these goes backward? (a) the rowing boat (b) the rocket (c) the balloon (d) water from the oars
4. 4.🔮 Predict: you blow the balloon up only a little. What happens? (a) it turns into a kite (b) it goes much farther (c) it goes less far (d) it flies off the string
5. 5.🚀 In “push back, move forward”, which way does gas from the rocket go? (a) goes backward (b) goes forward
6. 6.🧺 Which of these is not needed for the balloon rocket? (a) a long string (b) two chairs (c) sticky tape (d) turmeric powder
7. 7.True or false: a battery cell is needed for the balloon rocket. (a) False (b) True
8. 8.🚀 In “push back, move forward”, which way does water a swimmer pushes go? (a) goes forward (b) goes backward
9. 9.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: the same string is the one thing we change. (a) True (b) False
10. 10.🚀 In “push back, move forward”, which way does the rocket go? (a) goes forward (b) goes backward
11. 11.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same string”? (a) we measure it (b) we change it (c) we keep it the same
12. 12.True or false: a long string is needed for the balloon rocket. (a) False (b) True
13. 13.🧺 Do we need a drinking straw for the balloon rocket? (a) needed (b) not needed
14. 14.🧺 Do we need two chairs for the balloon rocket? (a) not needed (b) needed
15. 15.True or false: a mirror is needed for the balloon rocket. (a) False (b) True
16. 16.True or false: yeast is needed for the balloon rocket. (a) True (b) False
17. 17.🔮 Predict: you use a rough, thick string instead of a smooth one. (a) less friction (b) no change at all (c) it goes faster (d) more friction, less far
18. 18.🧺 Which of these is not needed for the balloon rocket? (a) a drinking straw (b) a long string (c) a balloon (d) a mirror
19. 19.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is the one thing we change? (a) how big we blow it (b) the same tape (c) the slope of the string (d) the same straw
20. 20.🛟 What should you do with popped balloon pieces? (a) chew them (b) keep them in your mouth (c) throw them away safely (d) give them to a baby
21. 21.True or false: a balloon is needed for the balloon rocket. (a) True (b) False
22. 22.🧺 Do we need sticky tape for the balloon rocket? (a) needed (b) not needed
23. 23.🛟 Which is a safe rule for the balloon rocket? (a) blow it till it bursts (b) put string round a neck (c) keep it away from faces (d) aim it at your friend
24. 24.⚖️ Fair test — does a bigger balloon go farther along the string? True or false: how big we blow it is kept the same. (a) False (b) True
25. 25.🔮 Predict: the string slopes uphill. What happens? (a) it speeds up (b) it goes backward first (c) it travels farther (d) it travels less far
26. 26.🚀 In “push back, move forward”, which way does water from the oars go? (a) goes backward (b) goes forward
27. 27.🚀 In “push back, move forward”, which way does the swimmer go? (a) goes backward (b) goes forward
28. 28.🎈 Air rushes out of the back of the balloon. Which way does the balloon move? (a) backward (b) it stays still (c) straight down (d) forward
29. 29.🚀 In “push back, move forward”, which way does air from the balloon go? (a) goes forward (b) goes backward
30. 30.True or false: a drinking straw is not needed for the balloon rocket. (a) False (b) True
31. 31.🎈 When does the balloon rocket stop? (a) when it turns blue (b) it never stops (c) when the air runs out (d) when it gets cold
32. 32.🧺 Three of these are needed for the balloon rocket. Which one is NOT needed? (a) a battery cell (b) two chairs (c) a long string (d) a balloon
33. 33.True or false: a drinking straw is needed for the balloon rocket. (a) False (b) True
34. 34.True or false: a balloon is not needed for the balloon rocket. (a) True (b) False
35. 35.🧺 Do we need a mirror for the balloon rocket? (a) not needed (b) needed
36. 36.⚖️ Fair test — does a bigger balloon go farther along the string? Which of these is what we measure? (a) the same tape (b) distance it travels (c) the same straw (d) the slope of the string
37. 37.📘 Every push has an equal push in the opposite direction. Which toy shows this? (a) a sundial (b) a balloon rocket (c) a fridge magnet (d) a mirror
38. 38.⚖️ Fair test — does a bigger balloon go farther along the string? What do we do with “the same straw”? (a) we keep it the same (b) we measure it (c) we change it
39. 39.True or false: water from the oars goes forward. (a) False (b) True
40. 40.🚀 Which of these goes forward? (a) air from the balloon (b) water from the oars (c) the rocket (d) gas from the rocket

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